Q1: What is a filter press primarily used for?

A filter press is primarily used for efficient solid-liquid separation in various industrial processes, achieving a high solid content in the resulting filter cake.

Q2: What are the main types of filter presses?

The main types include plate-and-frame filter presses, chamber (recessed plate) filter presses, and the highly efficient automatic membrane filter presses.

Q3: How do membrane filter presses differ from chamber filter presses?

Membrane filter presses utilize flexible plates that inflate to squeeze the filter cake after filtration, resulting in lower moisture content and significantly shorter cycle times.

Q4: What materials are the filter plates typically made of?

Filter plates are commonly made of high-strength polypropylene (PP). For specialized or high-temperature/corrosive applications, materials like cast iron or stainless steel may be used.

Q5: What is the function of the filter cloth?

The filter cloth is the essential filtering medium that separates the solid particles from the liquid (filtrate). Its pore size and material are specifically chosen based on the slurry characteristics.

Q6: How is the filter cake discharged?

Cake discharge can be manual, semi-automatic (using mechanical plate shifters), or fully automatic, where a hydraulic system ensures swift and complete cake release.

Q7: What pressure ratings are standard for filter presses?

Standard operating pressures typically range from 6 bar up to 16 bar. Membrane presses often operate at higher pressures to achieve optimal cake dryness.

Q8: How long does a typical filtration cycle take?

A filtration cycle can vary widely, typically taking between 30 minutes to 4 hours. The duration depends heavily on the slurry concentration, particle size, and the required dryness of the filter cake.

Q9: Can a filter press handle abrasive or corrosive slurries?

Yes, they can, provided the contact components (plates, cloth, piping) are constructed from chemically resistant and durable materials, such as specific grades of polypropylene or corrosion-resistant metals.

Q10: What is the expected lifespan of a filter press?

With correct operation and routine preventative maintenance, a high-quality filter press system can reliably perform for 15 to 25 years.

Q11: How is the filter press cleaned?

The primary cleaning requirement is for the filter cloth, which is often done periodically using integrated high-pressure spray bars or through manual chemical cleaning procedures.

Q12: What safety features are included?

Our presses include essential safety features such as hydraulic system pressure relief valves, light curtains (on automatic models), and easily accessible emergency stop buttons.

Q13: Is pre-treatment (flocculation) necessary?

Yes, pre-treatment is almost always necessary. Chemical conditioning (flocculation) helps aggregate fine particles into larger, more easily filterable flocs, which is crucial for maximizing press efficiency.

Q14: How do I size the right filter press for my needs?

Correct sizing requires comprehensive data on your slurry's flow rate, solids concentration, specific gravity, and the desired final cake dryness. We recommend laboratory or on-site pilot testing for accuracy.

Q15: What is the lead time for manufacturing and delivery?

Manufacturing lead time generally ranges from 8 to 12 weeks, depending on the machine's size, the level of customization required, and the current production schedule.

Industrial Filter Presses for Reliable Dewatering & Filtration

Filter Press Systems Manufacturer |Custom Dewatering Solutions

Loway Equipment engineers and manufactures advanced industrial filter press systems designed for critical dewatering, sludge processing, and purification applications.

We deliver end-to-end filtration solutions including plate, membrane and automatic filter presses that reduce cycle times, minimize waste disposal costs, and maximize operational uptime. — ideal for wastewater, mining, chemical, food & oil-recycling applications, trusted globally for superior solid-liquid separation and reliable performance in the most demanding applications.

Core Capabilities

25+ Years of Engineering Expertise
Global Compliance (ASME, CE, ATEX)
Smart Systems (Automated & IoT Ready)
Industry-Leading Lead Times

Core Capabilities:
✅ High-Pressure Filtration: Up to 6.0MPa for ultra-dry cakes
✅ Global Compliance: CE, ATEX, ASME, FDA certifications
✅ Smart Technologies: IoT monitoring, AI-driven optimization
✅ Rapid Delivery: 30% faster lead times than industry average

Filter Press Product Range

Recessed Chamber Filter Press

The industry workhorse. A highly versatile and reliable system for a wide range of standard dewatering applications. Simple operation and robust design.

Quick Opening Filter Press

Drastically cuts downtime. Designed for rapid-cycle batch processes where fast cake discharge and cleaning are critical.

Membrane Filter Press

Achieves the highest level of cake dryness. The "squeeze" function significantly reduces residual moisture, ideal for high-value solids or minimizing disposal weight.

Automated Filter Press

Designed for 24/7, lights-out operation. Features automatic plate shifting, cloth washing, and cake discharge to minimize labor costs and maximize throughput.

Plate and Frame Filter Press

Offers maximum filtration flexibility. Ideal for processes requiring filter paper or managing variable cake thicknesses and ultra-fine particulates.

Customized Filter Press Solutions

Our Customized Filter Press Equipment is designed to meet your specific needs, offering tailored solutions for solid-liquid separation. Whether you require specialized materials, unique configurations, or advanced automation.

We offer a comprehensive range of filter press types, each optimized for specific slurry characteristics and operational goals.

Product Type	Primary Keyword	Key Benefit	Ideal Application
Membrane Filter Press	Membrane filter press	Superior cake dryness and shorter cycle times via plate inflation.	Fine chemicals, pigments, and high-value recovery.
Automated Filter Press	Automatic filter press	Full automation of plate shifting, cloth washing, and cake discharge.	High-volume, continuous operations (e.g., mining).
Plate & Frame Filter Press	Plate and frame filter press	Versatile, cost-effective solution for general solid-liquid separation.	Batch processing, small to medium capacity.
Recessed Chamber Press	Chamber filter press	Simple, robust design for general sludge dewatering.	Municipal and industrial wastewater treatment.
Quick Opening Press	Quick opening filter press	Minimal downtime with ≤30-second plate pack opening.	Pharmaceuticals and specialty chemicals requiring rapid turnaround.

Filter Press Process Cycle (How It Works)

The efficiency of a filter press lies in its simple, robust batch process. While designs vary, the fundamental filter press working principle remains consistent. A complete filtration cycle typically includes these steps:

Step	Process Phase	Description	Optimization Focus
1	Plate Closing	The hydraulic system closes the filter plate pack, creating sealed filtration chambers.	Ensuring uniform pressure and leak-free operation.
2	Slurry Feeding	The filter press pump injects the slurry into the chambers under high pressure. The liquid (filtrate) passes through the filter press cloth, leaving solids behind.	Consistent feed pressure and flow rate for optimal cake formation.
3	Cake Formation & Pressing	Solids accumulate on the cloth, forming the filter cake. For membrane presses, the membrane inflates to mechanically squeeze out residual moisture.	Achieving the lowest possible moisture content (ultra-dry cake).
4	Filtrate Discharge	The clean filtrate is collected and discharged from the press.	Monitoring filtrate clarity and flow for process control.
5	Cake Discharge	The hydraulic system opens the plate pack, and the filter cake is discharged by gravity or automated plate shifting.	Rapid, clean discharge to minimize cycle time and labor.

Filter Press Components & Spare Parts

Keep Your System Running at Peak Performance

Available Filter Press Parts:

Filter Press Cloths

– Multiple materials and weave patterns in stock

Filter Press Plates

– Replacement plates for all major brands

Hydraulic Components

– Pumps, cylinders, valves, and seals

Feed Pumps

– Diaphragm and piston pump options

Membrane

– Optional, higher pressing pressure

Automation Upgrades

– Retrofit kits for manual presses

Industry Applications

Proven Solutions Across Global Industries

Wastewater & Sludge Dewatering

Our sludge filter press systems are a benchmark in municipal and industrial filter press wastewater treatment, delivering high solids cake and clear effluent.

Mining & Metallurgy

Robust, heavy-duty presses designed for dewatering mineral concentrates, tailings management, and metal recovery.

Chemical Manufacturing

Specialized systems built with corrosion-resistant materials (e.g., PP, stainless steel) for fine chemicals, pigments, and process intermediates.

Food, Beverage & Pharma

Hygienic, FDA-compliant designs for processes like syrup filtration, brewing, edible oils, and pharmaceutical intermediate purification.

Oil & Gas

Reliable filtration for managing drilling muds, slop oil, and refinery waste streams.

Loway Filtration Excellence

For over 25 years, Loway Equipment has specialized in designing and manufacturing robust filter press systems that solve complex dewatering challenges. Our equipment is built to withstand aggressive industrial environments, ensuring a long operational lifespan and predictable performance.

Proven performance: Optimized cycle times and >30% cake dryness (spec per model).
Lower operating cost: Efficient cake washing, automated controls and durable filter cloths.
Built for industry: Municipal wastewater, mining tailings, chemical plants, food & beverage, transformer oil recycling.
Service & parts: Global spare parts, cloth replacements, and retrofit services.
Quality & traceability: Factory QA, inspected hydraulic systems, and documented material certificates.

The Loway Manufacturing Standard

Structural Integrity & Hydraulic Precision

A filter press is only as good as its frame. We utilize Q355B high-tensile steel (or stainless steel options) for our frames, which are robotically welded and stress-relieved to prevent deformation under years of high-pressure cycling.

The Engineering Logic: This rigid structure supports our heavy-duty hydraulic cylinders, allowing for precise pressure control that maintains seal integrity without over-stressing the components.

Optimized Filtration Media & Plate Technology

We don’t believe in “one-size-fits-all” filtration. Our filter plates are molded from 100% virgin Polypropylene (PP) and CNC-machined for precise flatness to eliminate leakage.

The Engineering Logic: We pair these plates with custom-selected filter cloths (PP, Nylon, Polyester, or PVDF). By matching the weave pattern and tension to your specific slurry, we extend cloth life and maximize filtrate clarity.

Intelligent Process Control

Modern filtration requires more than manual operation. Our systems integrate PLC-based automation with real-time pressure monitoring and safety interlocks.

The Engineering Logic: This system actively protects the equipment by preventing over-pressure events and alerts operators to maintenance needs, transforming the press from a passive machine into a controllable process asset.

Validated Quality & System Integration

No equipment leaves our facility based on guesswork. Every unit undergoes a comprehensive static hydraulic pressure test and functional verification before shipment.

The Engineering Logic: We look beyond the press itself. We ensure compatibility with filter press feed pumps, air scouring systems, and cake conveyors, delivering a fully integrated solution that works immediately upon installation.

Engineered for Performance, Built for Trust

Data-Driven Performance

Our advantage is measurable. Compared to industry standards, Loway systems deliver: • Up to 40% Faster Cycle Times through optimized hydraulics and feed. • 30%+ Drier Filter Cakes with our advanced membrane technology. • Extended Plate & Cloth Lifespan (18-36 months) via reinforced composite

We Are Filtration Specialists

We are not just filter press manufacturers; we are your filtration partners. Our team provides expert sizing, process analysis, and pilot testing to ensure the system you buy is the system you need.

Total Lifecycle Support

From installation and training to a global supply of filter press parts, plates, and cloths, we provide 24/7 technical support to keep your operations running.

Not Sure Which System You Need?

Our engineers provide free filter press design consultation based on your slurry test data or sample analysis.

Request Free Sizing Analysis →

Filter Press Selection Guide

Key Factors for Sizing Your System

Slurry Characteristics

Feed solids concentration (%)
Particle size distribution
Compressibility
Chemical compatibility requirements

Throughput Requirements

Daily/hourly volume to process
Target cake dryness
Available batch time windows

Filter Press Capacity Calculation Basics

Filter Area (m²) = (Slurry Volume × Feed Solids %) / (CakeThickness × Cake Solids % × Number of Cycles per Day)

Common Questions

Most Popular Questions.

Have More Questions? Our technical team is ready to provide detailed, personalized guidance.

Q1: What is a Filter Press Equipment?

A filter press is an industrial machine used for solid-liquid separation. It uses high pressure to force a liquid/solid slurry through a series of filter chambers, trapping the solids to form a “filter cake” and allowing the clear liquid (filtrate) to pass.

Q2: How does a filter press work?

The process involves four main steps:

Filling: Slurry is pumped into the closed filter chambers.
Filtration: Pressure builds, forcing liquid through the filter cloth.
Squeezing (Membrane only): Membranes inflate to compress the cake and remove more liquid.
Discharge: The press opens, and the dry filter cakes are discharged.

Q3: What industries use filter presses?

Filter presses are critical in wastewater treatment, mining, chemical manufacturing, food & beverage, pharmaceuticals, and many more.

Q4: What Types of Filter Presses Equipment Do You Offer?

We provide multiple filter press types:

Plate and Frame Filter Presses
Membrane Filter Presses
Automatic Filter Presses
Manual Filter Presses
Hydraulic Membrane Filter Presses

Q5: What Factors Determine Filter Press Equipment Selection?

Key selection criteria include:

Solid particle characteristics
Liquid viscosity
Required filtration capacity
Operating temperature
Chemical compatibility
Desired cake dryness
Budget constraints

Q6: What Materials Can Be Filtered?

Our filter presses handle diverse materials:

Mineral slurries
Chemical suspensions
Pharmaceutical compounds
Food processing residues
Wastewater sludge
Metal processing waste
Polymer solutions

Q7: What Maintenance Do Filter Presses Equipment Require?

Recommended maintenance includes:

Regular cloth inspection and replacement
Hydraulic system checks
Plate and frame cleaning
Lubrication of moving parts
Pressure system calibration
Annual comprehensive system review

Q8: How Long Do Filter Press Components Last?

Component lifespan varies:

Filter Cloths: 6-24 months
Hydraulic Components: 3-5 years
Stainless Steel Plates: 10-15 years
Seals and Gaskets: 1-2 years

Actual duration depends on:

Operating conditions
Material characteristics
Maintenance quality
Frequency of use

Q9: How Can I Improve Filter Press Equipment Efficiency?

Efficiency improvement strategies:

Regular preventative maintenance
Proper cloth selection
Optimal pressure management
Consistent feed quality
Advanced automation
Periodic performance audits

Q10: What Influences Filter Press Equipment Cost?

Price determinants include:

Equipment size
Material of construction
Automation level
Specialized features
Customization requirements
Production capacity

Q11: How Do I Calculate ROI for a Filter Press Equipment?

ROI calculation considerations:

Reduced waste disposal costs
Increased production efficiency
Lower labor requirements
Improved product quality
Extended equipment lifecycle
Energy consumption reduction

Q12: Do You Provide Installation Support?

Our comprehensive installation services include:

Site assessment
Equipment positioning
System integration
Operational training
Performance testing
Ongoing technical support

Q13: What Warranty do You Offer?

Standard warranty coverage:

12 months parts warranty
6 months workmanship guarantee
Optional extended warranty packages
Comprehensive technical support

Q14: Can Loway Filter Presses Equipment Be Customized?

Customization options:

Plate size modifications
Special material construction
Custom automation levels
Application-specific designs
Unique filtration requirements

Q15: How Long Does Equipment Delivery Take?

Typical delivery timelines: